中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

Journal of Chongqing Jiaotong University(Natural Science) ›› 2019, Vol. 38 ›› Issue (04): 41-46.DOI: 10.3969/j.issn.1674-0696.2019.04.07

• Bridge & Tunnel Engineering • Previous Articles     Next Articles

Press-in Ventilation Parameters of Blind Heading of Spiral Tunnel

GAO Feng1, ZHANG Jie1, LIAN Xiaofei2, TANG Yuchen1, QI Huaiyuan1, HUANG Lei1   

  1. (1. School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, P. R. China; 2. CCCC Road & Bridge Technology Co. Ltd., Beijing 100018, P. R. China)
  • Received:2018-05-02 Revised:2019-01-12 Online:2019-04-15 Published:2019-04-15

螺旋隧道独头掘进压入式通风参数研究

高峰1, 张捷1, 连晓飞2, 唐宇辰1, 齐怀远1, 黄磊1   

  1. (1. 重庆交通大学 土木工程学院,重庆 400074; 2. 中交路桥技术有限公司,北京 100018)
  • 作者简介:高峰(1964—),男,浙江云和人,教授,博士生导师,主要从事隧道及地下工程方面的研究。E-mail:gaofeng1964@163.com。
  • 基金资助:
    青海省交通运输厅科技项目(20177)

Abstract: Based on the construction of ventilation project of Wolonggou No.1 tunnel, CFD software was used to simulate the flow field of different outlet distances and different arrangement modes of air ducts. The characteristics of the flow field were analyzed from the aspects of jet velocity field, wind speed variation curve and wind speed in eddy zone. The research shows that the ventilation effect is the best when the duct outlet is placed outside of the spiral of the tunnel axis in the spiral tunnel with R=720 m, and the distance between the outlet and the face of the tunnel should not be more than 40 m.

Key words: tunnel engineering, spiral tunnel, press-in ventilation, layout location

摘要: 以卧龙沟1号隧道施工通风工程为依托,采用CFD软件,进行不同风筒出口距离和不同风筒布置方式的流场数值模拟,从射流风速流场 、风速变化曲线、涡流区风速等方面分析了流场特征。研究表明:在R=720 m左右的螺旋隧道中,风管出风口置于隧道轴线螺旋外侧时通风 效果最好,且出风口距掌子面距离不宜大于40 m。

关键词: 隧道工程, 螺旋隧道, 压入式通风, 布设位置

CLC Number: